Vintage BAKELITE Cameo Brooch/Pin. Orange/Black. Tested

Vintage BAKELITE Cameo Brooch/Pin. Orange/Black. (2.5" tall, 2" wide) Tested positive for Bakelite using baking soda. Very Good overall condition, nothing broken or damaged. There is some dust/dirt and/or verdigris within the crevices of the edge metal chain, and within the lady's curly hair. I gave the piece a light cleaning - clearly it takes someone with more skill. I used a light brush on the hair, and it did not get much better.